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Copper-iron alloy with excellent bending resistance and processing method thereof

A technology of copper-iron alloy and processing method, which is applied in the direction of manufacturing tools, furnaces, heat treatment equipment, etc., can solve the problems of inconspicuous improvement effect, and achieve the effects of easy-to-obtain and low-cost raw materials, easy large-scale production, and low energy consumption

Active Publication Date: 2021-08-17
INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the methods to improve the bending properties of the alloy mainly focus on increasing the rolling deformation and improving the annealing process in order to refine the grains and improve the uniformity of the grains, but the improvement effect is not obvious

Method used

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  • Copper-iron alloy with excellent bending resistance and processing method thereof
  • Copper-iron alloy with excellent bending resistance and processing method thereof
  • Copper-iron alloy with excellent bending resistance and processing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The embodiments of the present invention provide a copper-iron alloy with excellent bending resistance and a processing method thereof.

[0054] 1. Raw material ratio

[0055]

[0056] 2. Processing method

[0057] Specifically include the following steps:

[0058] S1, preprocessing

[0059]Degrease, clean and dry the electrolytic copper plate, iron block and Ti particles respectively, and mix according to the mass ratio;

[0060] S2, melting and casting

[0061] Mix the electrolytic copper plate and iron block into a vacuum induction melting furnace to heat, heat, add Ti particles after the iron block is completely melted, refine for 2.5 minutes, pass inert gas, and cast into a slab;

[0062] The specific parameters are shown in the table below:

[0063]

[0064] S3, solid solution

[0065] Insulate at 950°C for 60 minutes, then water-cool and oxidize the layer;

[0066] S4, face milling

[0067] Milling off the crust layer and oxide layer on the surface ...

Embodiment 2

[0071] The embodiments of the present invention provide a copper-iron alloy with excellent bending resistance and a processing method thereof.

[0072] 1. Raw material ratio

[0073]

[0074] 2. Processing method

[0075] Specifically include the following steps:

[0076] S1, preprocessing

[0077] Degrease, clean and dry the electrolytic copper plate, iron block and Ti particles respectively, and mix according to the mass ratio;

[0078] S2, melting and casting

[0079] Mix the electrolytic copper plate and iron block into a vacuum induction melting furnace to heat, add Ti particles after the iron block is completely melted, refine for 3 minutes, pass inert gas, and cast into a slab;

[0080] The specific parameters are shown in the table below:

[0081]

[0082] S3, solid solution

[0083] Insulate at 940°C for 60 minutes, then water-cool;

[0084] S4, face milling

[0085] Milling off the crust layer and oxide layer on the surface of copper-iron alloy;

[008...

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Abstract

The invention provides a copper-iron alloy with excellent bending resistance and a processing method thereof. The copper-iron alloy comprises the following chemical components in percentage by weight: 13-15% of Fe, 0.1-0.24% of Ti and the balance of Cu and inevitable impurities. According to the metallographic structure of the copper-iron alloy, a second phase is in fiber distribution in the rolling direction, and the second phase is refined to a certain degree and has the characteristics of dispersive distribution. According to the copper-iron alloy with excellent bending resistance and the processing method thereof, 0.1-0.24%, by weight, of Ti is added, good purification effects such as impurity removal and oxygen removal and grain refinement effects are achieved on melt, the doped Ti can serve as nucleation cores of primary crystallization, more nucleation cores are formed, therefore, grains are refined, and finally the effect of obviously improving the bending performance of the Cu-Fe alloy is achieved; and the processing method is simple, short in process, controllable in process, easy for large-scale production to carry out, easy for raw materials to obtain, low in cost of the raw materials, low in energy consumption in the production process, excellent in comprehensive performance and good in practical application prospect.

Description

technical field [0001] The invention relates to the technical field of copper-iron alloy processing, in particular to a copper-iron alloy with excellent bending resistance and a processing method thereof. Background technique [0002] Copper-iron alloy (Cu-Fe alloy) has high strength, high electrical conductivity, high thermal conductivity and good electromagnetic shielding performance, and can be widely used in many industrial fields, such as lead frames in integrated circuits, connectors, relay shrapnel, heat dissipation System and Apple computer wires and other products; Among them, many application fields such as connectors, relay shrapnel and Apple computer wires have high requirements on the bending performance of Cu-Fe alloys. [0003] However, the bending performance of the Cu-Fe alloy itself is poor. Specifically, the Cu-Fe alloy is prone to cracks when it is bent at 90°, resulting in a short service life of the product. During the bending process, the alloy goes t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/02C21D9/00C22F1/08B23P15/00
CPCC22C9/00C22C1/02C22F1/08C21D9/0081B23P15/00
Inventor 余辉辉曾延琦陆德平张友亮胡强邹晋刘秋香王佳伟郭军力
Owner INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI